Capability interaction method and related device

Abstract

A capability interaction method and a related device capable of enabling a network device to learn about capability information of an adjacent network device. The method comprises: obtaining capability information of at least one adjacent network device and/or at least one adjacent cell; and determining, on the basis of the capability information of the adjacent network device and/or at least one adjacent cell, a configuration of a radio resource for at least one terminal device.

The invention claimed is: 
     
       1. A method for capability interaction, executed by a network device, the method comprising:
 acquiring capability information of at least one neighbor network device and/or at least one neighbor cell; 
 determining a radio resource configuration for at least one terminal device based on the capability information of the neighbor network device and/or the at least one neighbor cell, wherein the capability information comprises an Evolved Universal Terrestrial Radio Access (E-UTRA)-New Radio (NR)-(EN) dual connectivity (DC) capability support indication, radio frequency information, and tracking area code (TAC) information; and 
 when the capability information of the neighbor network device comprises the TAC information, and handover (HO) limit information of the terminal device from the core network is that a TAC corresponding to the neighbor network device is an access barring TAC, not configuring the neighbor network device to be a secondary node (SN). 
 
     
     
       2. The method of  claim 1 , wherein the acquiring the capability information of the at least one neighbor network device and/or the at least one neighbor cell comprises:
 acquiring the capability information of the at least one neighbor network device and/or the at least one neighbor cell through an Xn interface with the at least one neighbor network device. 
 
     
     
       3. The method of  claim 1 , wherein the capability information further comprises at least one of:
 connectable core network information, a signaling radio bearer 3 (SRB3) capability support indication, a split SRB1 capability support indication, a split SRB2 capability support indication, a DC-based packet data convergence protocol (PDCP) duplication capability support indication, a carrier aggregation (CA)-based PDCP duplication capability support indication, or load indication information. 
 
     
     
       4. The method of  claim 1 , further comprising:
 determining whether to configure the neighbor network device to be the SN, according to the capability information of the neighbor network device and a measurement report of the terminal device for the neighbor network device. 
 
     
     
       5. The method of  claim 4 , further comprising at least one of:
 when the capability information of the neighbor network device comprises the radio frequency information, determining whether to configure the neighbor network device to be the SN based on the radio frequency information supported by the terminal device; or 
 when the capability information of the neighbor network device comprises load indication information, selecting a target network device from the at least one neighbor network device based on a load condition of the at least one neighbor network device, and configuring the target network device to be the SN. 
 
     
     
       6. A method for capability interaction, executed by a terminal device, the method comprising:
 sending a measurement report to a network device, wherein the measurement report at least comprises: capability information of at least one neighbor network device and/or at least one neighbor cell, and identification information of the at least one neighbor network device or the at least one neighbor cell, 
 wherein the capability information comprises an Evolved Universal Terrestrial Radio Access (E-UTRA)-New Radio (NR)-(EN) dual connectivity (DC) capability support indication, radio frequency information, and tracking area code (TAC) information, 
 wherein when the capability information of the neighbor network device comprises the TAC information, and handover (HO) limit information of the terminal device from the core network is that a TAC corresponding to the neighbor network device is an access barring TAC, the neighbor network device is not configured to be a secondary node (SN). 
 
     
     
       7. The method of  claim 6 , before sending the measurement report to the network device, further comprising:
 receiving a measurement configuration from the network device, wherein the measurement configuration is used for indicating at least one of the following information that the terminal device needs to measure: 
 the identification information of the neighbor network device; or 
 the identification information of the neighbor cell. 
 
     
     
       8. The method of  claim 6 , further comprising:
 receiving the capability information broadcast by at least one of the neighbor network device or the neighbor cell. 
 
     
     
       9. The method of  claim 6 , wherein the capability information further comprises at least one of:
 connectable core network information, a signaling radio bearer 3 (SRB3) capability support indication, a split SRB 1 capability support indication, a split SRB2 capability support indication, a DC-based packet data convergence protocol (PDCP) duplication capability support indication, a carrier aggregation (CA)-based PDCP duplication capability support indication, or load indication information. 
 
     
     
       10. A network device, comprising:
 a transceiver, configured to acquire capability information of at least one neighbor network device and/or at least one neighbor cell; and 
 a processor, configured to determine a radio resource configuration for at least one terminal device based on the capability information of the neighbor network device and/or the at least one neighbor cell, 
 wherein the capability information comprises an Evolved Universal Terrestrial Radio Access (E-UTRA)-New Radio (NR)(EN)-dual connectivity (DC) capability support indication, radio frequency information, and tracking area code (TAC) information, 
 wherein the processor is configured not to, when the capability information of the neighbor network device comprises the TAC information, and handover (HO) limit information of the terminal device from the core network is that a TAC corresponding to the neighbor network device is an access barring TAC, configure the neighbor network device to be a secondary node (SN). 
 
     
     
       11. The network device of  claim 10 , wherein the transceiver is configured to acquire the capability information of the at least one neighbor network device and/or the at least one neighbor cell through an Xn interface with the at least one neighbor network device. 
     
     
       12. The network device of  claim 10 , wherein the capability information further comprises at least one of:
 connectable core network information, a signaling radio bearer 3 (SRB3) capability support indication, a split SRB1 capability support indication, a split SRB2 capability support indication, a DC-based packet data convergence protocol (PDCP) duplication capability support indication, a carrier aggregation (CA)-based PDCP duplication capability support indication, or load indication information. 
 
     
     
       13. The network device of  claim 10 , wherein the processor is further configured to determine whether to configure the neighbor network device to be the SN, according to the capability information of the neighbor network device and a measurement report of the terminal device for the neighbor network device. 
     
     
       14. The network device of  claim 13 , wherein the processor is further configured to execute at least one of the following processing:
 when the capability information of the neighbor network device comprises the radio frequency information, determining whether to configure the neighbor network device to be the SN in combination with the radio frequency information supported by the terminal device; or 
 when the capability information of the neighbor network device comprises the load indication information, selecting a target network device from the at least one neighbor network device based on a load condition of the at least one neighbor network device, and configuring the target network device to be the SN. 
 
     
     
       15. A terminal device, comprising:
 a transceiver, configured to send a measurement report to a network device, wherein the measurement report at least comprises capability information of at least one neighbor network device and/or at least one neighbor cell, and identification information of the at least one neighbor network device or the at least one neighbor cell, 
 wherein the capability information comprises an Evolved Universal Terrestrial Radio Access (E-UTRA)-New Radio (NR)(EN)-dual connectivity (DC) capability support indication, radio frequency information, and tracking area code (TAC) information, 
 wherein when the capability information of the neighbor network device comprises the TAC information, and handover (HO) limit information of the terminal device from the core network is that a TAC corresponding to the neighbor network device is an access barring TAC, the neighbor network device is not configured to be a secondary node (SN). 
 
     
     
       16. The terminal device of  claim 15 , wherein the transceiver is configured to receive a measurement configuration sent by the network device, wherein the measurement configuration is used for indicating at least one of the following information that the terminal device needs to measure:
 the identification information of the neighbor network device; or 
 the identification information of the neighbor cell. 
 
     
     
       17. The terminal device of  claim 15 , wherein the transceiver is configured to receive the capability information broadcast by at least one of the neighbor network device or the neighbor cell. 
     
     
       18. The terminal device of  claim 15 , wherein the capability information further comprises at least one of:
 connectable core network information, a signaling radio bearer 3 (SRB3) capability support indication, a split SRB 1 capability support indication, a split SRB2 capability support indication, a DC-based packet data convergence protocol (PDCP) duplication capability support indication, a carrier aggregation (CA)-based PDCP duplication capability support indication, or load indication information.